How green are car makers? - Audi to Hyundai

Audi
'Petrol and electric hybrid technology is in the pipeline, as demonstrated at the 2005 Frankfurt Motor Show by the petrol/electric Q7.'

BMW
'Our bumper-recycling programme allows dealers to replace old bumpers for new ones. During 2004, more than 80 tonnes of plastic were recycled and put back into production.'

Citroen
'We offer several of the lowest carbon dioxide-emitting cars in the world, including the C1 and C2 (with 109g/km and 113g/km), plus a diesel particulate filter system and Stop & Start technology.'

Fiat/Alfa
'Fiat Group's latest developments include gas-powered engines and prototype hydrogen vehicles.'

Ford
'Our Dagenham Diesel Centre is wind-powered. Solar energy helps run our Bridgend plant. Ford sells a bio-ethanol flexible-fuel Focus and is developing hybrid and hydrogen fuel-cell vehicles.'

Honda
'We were the first manufacturer to launch a hybrid car, and lead development of fuel-cell cars. Our Swindon factory has cut waste to landfill from 60kg per car to 7kg since 1996.'

Hyundai
'We are developing a hybrid Getz and Accent, as well as a fuel-cell Tucson.'